JSFiddle - React, Tailwind, and code Playground

JavaScript

var newA = function(x,y,value) {
					var value = value || 0;
					var result = new Array(x);
					for (var i=0;i<result.length;i++){
						result[i] = new Array(y);
						for(var j=0;j<result[i].length;j++){
							result[i][j] = value;
						}
					}
					return result;
				}

var fields = newA(5,5,new Array(2));
fields[0][0][0] = 'lol';
alert(fields[0][1][0]);